Patent US3088798A successfully refreshed from Google Patents.
US3088798A
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US
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Extraction of a metal from solutions containing same
Assignee: Nopco Chemical Co
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Filing: 1959-05-25
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Granted: 1963-05-07
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Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Charles A Fetscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:52
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/42; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROCESS FOR ELUTING A POLYVALENT METAL FROM A SOLID, SOLVENT INSOLUBLE POLYAMIDOXIME CHELATED WITH SAID METAL WHICH COMPRISES THE STEPS OF BRINGING A SOLID, SOLVENT INSOLUBLE POLYAMIDOXIME CHELATED WITH A SINGLE POLYVALENT METAL SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
40 words
A PROCESS FOR ELUTING A POLYVALENT METAL FROM A SOLID, SOLVENT INSOLUBLE POLYAMIDOXIME CHELATED WITH SAID METAL WHICH COMPRISES THE STEPS OF BRINGING A SOLID, SOLVENT INSOLUBLE POLYAMIDOXIME CHELATED WITH A SINGLE POLYVALENT METAL SELECTED FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |